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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 710523Generated: October 25, 2026

Lawesson's reagent → HCID 178490026, compound

https://huagongshe.com/reaction/710523

Reaction equation

Participants

RoleNameHCIDCharge
ReactantLawesson's reagentHCID 87949—
Reactant3-(3,4-Dimethoxyphenyl)propionyl chlorideHCID 15620702—
Reactant1H-benzimidazole-5-carbohydrazideHCID 16637119—
ProductHCID 178490026HCID 178490026—

Reaction Steps

The compound was synthesized starting from benzimidazol-5-carbohydrazide (176 mg; 1 mmol), TEA (0.153 ml; 1.1 mmol), 3,4-dimethoxyphenylpropionylchloride (228 mg, 1.1 mmol) and Lawesson's reagent (606 mg; 1.5 mmol) as described in method 1; yield: 0.017 g (4.6%); MS m/z: 367.2 [M+H]+; 1H-NMR (DMSO d6, 400 MHz): δ 3.00 (t, 2H, 3J=7.5 Hz); 3.40 (t, 2H, 3J=7.5 Hz); 3.68 (s, 3H); 3.70 (s, 3H); 6.75-6.77 (m, 1H); 6.81-6.83 (m, 1H); 6.89 (br s, 1H); 7.67-7.69 (m, 1H); 7.73-7.75 (m, 1H); 8.09 (br s, 1H); 8.34 (s, 1H; HPLC (METHOD [A]): rt 10.82 min (100%)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09181233B2
Source datasetuspto-grants-2015_11
ORD IDord-06114f56c8e141299854404d4f4136c9
Source noteuspto-grants-2015_11